Lithium ion transport in Li2SO4-Li2O-P2O5 glasses

被引:54
作者
Ganguli, M [1 ]
Bhat, MH [1 ]
Rao, KJ [1 ]
机构
[1] Indian Inst Sci, Solid State & Struct Chem Unit, Bangalore 560012, Karnataka, India
关键词
lithium ion conductivity; lithium phosphate glasses; lithium sulphate glasses;
D O I
10.1016/S0167-2738(99)00059-4
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Electrical conductivity and dielectric relaxation studies on a large number of lithium ion conducting glasses belonging to the ternary glass system Li2SO4-Li2O-P2O5 have been carried out over a wide range of temperature (150 K to 450 K) and frequencies (10 Hz-10(7) Hz). DC conductivities exhibit two different activation regions. This seems to be suggestive of the presence of a cluster-tissue texture in these glasses The clusters may be of both LI,SO, and lithium phosphate and are held together by a connective tissue of average composition. This conjecture seems to be well-supported by the ac conductivity behaviour of these glasses which have been analysed using both power law and stretched exponential relaxation functions. (C) 1999 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:23 / 33
页数:11
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